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WO2005035666A2 - Melanges antichocs de polycarbonate et de polyester - Google Patents

Melanges antichocs de polycarbonate et de polyester Download PDF

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Publication number
WO2005035666A2
WO2005035666A2 PCT/US2004/023195 US2004023195W WO2005035666A2 WO 2005035666 A2 WO2005035666 A2 WO 2005035666A2 US 2004023195 W US2004023195 W US 2004023195W WO 2005035666 A2 WO2005035666 A2 WO 2005035666A2
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WO
WIPO (PCT)
Prior art keywords
blend
core
monomer
acrylate
weight percent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2004/023195
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English (en)
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WO2005035666A3 (fr
Inventor
Asis K. Banerjie
Marina Rogunova
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Avient Corp
Original Assignee
Polyone Corp
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Filing date
Publication date
Application filed by Polyone Corp filed Critical Polyone Corp
Priority to US10/571,028 priority Critical patent/US20070054982A1/en
Publication of WO2005035666A2 publication Critical patent/WO2005035666A2/fr
Publication of WO2005035666A3 publication Critical patent/WO2005035666A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F265/00—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00
    • C08F265/04—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00 on to polymers of esters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F265/00—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00
    • C08F265/04—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00 on to polymers of esters
    • C08F265/06—Polymerisation of acrylate or methacrylate esters on to polymers thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L101/00—Compositions of unspecified macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • C08L51/04—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to rubbers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • C08L53/02—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C08K3/346—Clay
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/02—Fibres or whiskers
    • C08K7/04—Fibres or whiskers inorganic
    • C08K7/14—Glass
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing atoms other than carbon or hydrogen
    • C08L23/0869—Copolymers of ethene with unsaturated hydrocarbons containing atoms other than carbon or hydrogen with unsaturated acids, e.g. [meth]acrylic acid; with unsaturated esters, e.g. [meth]acrylic acid esters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing atoms other than carbon or hydrogen
    • C08L23/0869—Copolymers of ethene with unsaturated hydrocarbons containing atoms other than carbon or hydrogen with unsaturated acids, e.g. [meth]acrylic acid; with unsaturated esters, e.g. [meth]acrylic acid esters
    • C08L23/0884—Epoxide-containing esters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
    • C08L25/02—Homopolymers or copolymers of hydrocarbons
    • C08L25/04—Homopolymers or copolymers of styrene
    • C08L25/08—Copolymers of styrene
    • C08L25/10—Copolymers of styrene with conjugated dienes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
    • C08L77/12—Polyester-amides

Definitions

  • This invention relates the use of a tri-block copolymer as an impact modifier alone in blends of polyester and polycarbonate and together with other impact modifiers in blends of at least one polycondensate polymer.
  • Blends of polycarbonate and polyester and their need for impact modification are well known.
  • European Patent Publication EP 1207172 A2 discloses an improved impact modifier for blends of polyester with other polymers, including polycarbonate, wherein the impact modifier itself is a blend of a core/shell additive and a linear copolymer of olefin, alkyl acrylate, and glycidyl methacrylate monomers.
  • the present invention provides use of a new impact modifier that enliances impact properties tliroughout service temperatures (-40°C ⁇ 70°C) for blends, particularly PC-PET or PC-PBT blends without compromising heat distortion temperature or flexural modulus properties.
  • the new impact modifier can be used alone, or optionally in combination with the impact modifiers disclosed in EP1207172A2.
  • the new impact modifier is a triblock copolymer of a hard-soft-hard configuration, which permits it to respond to both low and high temperature conditions with good impact properties.
  • thermoplastic polymer blend comprising (a) a polyester; (b) a polycarbonate; and (c) a tri-block copolymer of an aromatic monomer, an olefin monomer, and an alkyl (meth)acrylate monomer.
  • thermoplastic polymer blend comprising (a) two thermoplastic polycondensate polymers and (b) a combination of impact modifiers, wherein the combination comprises (i) a core/shell additive having an elastomeric core, (ii) a linear terpolymer of ethylene, alkyl (meth)acrylate, and a monomer which contains a heterocycle containing one oxygen atom as the hetero-atom, and (iii) a tri-block copolymer of an aromatic monomer, an olefin monomer, and an alkyl (meth)acrylate monomer.
  • Other aspects of the invention include making and using blends described above.
  • One feature of the blends of the present invention is good impact properties at service temperatures ranging from about -40°C to 70°C without compromising other physical properties otherwise present, e.g., flexural modulus, tensile strength, and heat distortion temperature.
  • An advantage of the blends of the present invention is that a single compound can be used as parts for a machine that requires service temperatures ranging from about -40°C to 70°C, even though certain parts have different temperature requirements within that range.
  • the same part can function predictably notwithstanding its use in Alaska in the winter and Arizona in the summer.
  • a part designed to be adjacent a heat source can function even in a very cold environment, for example, a snow blower engine housing.
  • blends of the present invention are pigmented according to design choice of the manufacturer with an excellent surface finish.
  • triblock copolymer impact modifier used in the present invention can also serve as a compatibilizer because it has both polar and nonpolar blocks.
  • thermoplastic Polymers to be Impact Modified can be one or a number of polymers of the polycondensate type including without limitation, polyamides; polyetheresteramides (PEBAX); polycarbonates (PC); polyesters (such as polyethylene terephthalate (PET), polypropylene terephthalate (PPT), polybutylene terephthalate (PBT), poly(ethylene-2,6-napthalate) (PEN), polypropylene napthalate (PPN), poly(l,4-cyclohexanedimethanol terephthalate) (PCT), polyethylene naphthalate bibenzoate (PENBB), polybutylene naphthalate (PBN)); and liquid crystalline polymers (LCP); and blends of any two or more of them.
  • polyamides polyetheresteramides
  • PC polycarbonates
  • polyesters such as polyethylene terephthalate (PET), polypropylene terephthalate (PPT), polybutylene terephthalate (PBT
  • a blend of polycarbonate and a polyester is desirable with a blend of PC with either PET or PBT being preferred.
  • a commercially available blend of PC/PET or PC/PBT is branded as Xenoy from General Electric Company, Plastics Group.
  • the amount of thermoplastic polymer in the compound can range from about 50 to about 95, and preferably from about 60 to about 80 weight percent of the blend.
  • the relative contribution of the polycarbonate to the blend ranges from about 15 to about 85 weight percent, and preferably from about 20 to about 50 weight percent.
  • the relative contribution of the polyester to the blend ranges from about 15 to about 85 weight percent, and preferably from about 35 to about 65 weight percent.
  • the blends of the present invention contain a new impact modifier, tri-block copolymers constructed of three linear chains covalently bonded to one another.
  • the three blocks are an aromatic monomer, an olefin monomer, and an alkyl (meth)acrylate monomer.
  • the only commercially available tri-block copolymers useful as impact modifiers use styrene.
  • the relative contribution of the aromatic monomer to the tri-block copolymer ranges from about 20 to about 55, and preferably from about 33 to about 46 weight percent of the copolymer.
  • Non-limiting examples of the olefin monomer are alkyl monomers having four carbon atoms: butylene, and butadiene. Butadiene is preferred because of its low glass transition temperature (-85°C), its heat stability, and its better affinity with fillers such as carbon black.
  • the relative contribution of the olefin monomer to the tri-block copolymer ranges from about 7 to about 40, and preferably from about 14 to about 33 weight percent.
  • Non-limiting examples of the alkyl (meth)acrylate monomer include tert-butylmethacrylate and methylmethacrylate, with mostly syndiotactic methylmethacrylate being preferred due to a high glass transition temperature (135°C), better miscibility with some polymers such as PC and PNC, and increased heat stability.
  • the relative contribution of the alkyl (meth)acrylate monomer to the triblock copolymer ranges from about 20 to about 55, and preferably from about 20 to about 33 weight percent.
  • Such tri-block copolymers are commercially available such as the styrene-butadiene-methylmethacrylate family of products commercially available as "SBM" from Atofina Chemicals, Inc. of Philadelphia, PA.
  • Such tri-block copolymer impact modifier can be included in the blend of the present invention in an amount from about 3 to about 25, and preferably from about 5 to about 15 weight percent of the blend. Most preferably, the amount is about 7 to about 12 weight percent of the blend.
  • SBM tri-block copolymer as an impact modifier is that the copolymer provides nano- structuralization in the polymer matrix to better absorb energy during impact.
  • This optional impact modifier is comprised of a core/shell additive comprised of core based on alkyl acrylate, on a polyorganosiloxane rubber or a blend thereof and a shell based on poly(alkyl methacrylate), or on a styrene- acrylonitrile copolymer.
  • Such core/shell impact modifiers are commercially available such as the n-octyl acrylate rubber core/polymethylmethacrylate shell product commercially available as "D-400" from Atofina Chemicals, Inc. of Philadelphia, PA.
  • Such core/shell impact modifier can be included in the blend of the present invention in an amount from about 0 to about 10, and preferably from about 0 to about 7. Most preferably, the amount is about 1 to about 5 percent by weight of the blend.
  • Optional Linear Terpolymer Impact Modifier This optional impact modifier comprises a linear terpolymer of (a) ethylene, (b) a lower alkyl acrylate and (c) a monomer which contains a heterocycle containing one oxygen atom as the hetero-atom.
  • “Lower alkyl acrylate” means a C ⁇ -C 8 and preferably a C ⁇ -C 4 alkyl ester of (meth)acrylic acid. Of these possibilities, methyl acrylate is preferred.
  • the heterocyclic monomer contains an epoxy atom. Relative amounts of monomer in the terpolymer range from 55-75 weight percent ethylene, 20-30 weight percent lower alkyl acrylate, and 5-15 weight percent heterocyclic monomer.
  • Such linear terpolymer impact modifiers are commercially available such as the ethylene-methyl acrylate-glycidyl methacrylate product commercially available as "Lotader AX 8900" from Atofina Chemicals, Inc. of Philadelphia, PA.
  • Such linear terpolymer impact modifier can be included in the blend of the present invention in an amount from about 0 to about 10, and preferably from about 0 to about 7. Most preferably, the amount is about 1 to about 5 percent by weight of the blend.
  • Each of the three impact modifiers can be in powder, flake, or pellet form. They can be blended together into a concentrate or mixed with the thermoplastic polymers during melt processing in preparation for direct molding or pelletization for later molding.
  • Optional Additives As with many thermoplastic compounds, it is optional and desirable to include other additives to improve processing or performance.
  • Non-limiting examples of such optional additives include slip agents, antiblocking agents, antioxidants, ultraviolet light stabilizers, quenchers, dyes and pigments, plasticizers, mold release agents, lubricants, antistatic agents, fire retardants, and fillers such as glass fibers, talc, chalk, or clay. Of these fillers, the properties of nanoclay can add stiffness, toughness, and charring properties for flame retardancy.
  • Such optional additives can be included in the blend of the present invention in an amount from about 0 to about 40, and preferably from about 0.1 to about 30 weight percent. Most preferably, the amount is about 1 to about 7 weight percent of the blend.
  • the blend of the present invention can be prepared by any method which makes it possible to produce a thoroughly mixed blend containing at least one of the thermoplastic polycondensate polymers, the combination of impact modifiers described above, and other optional additives, if any. It is possible, for example, to dry -mix the ingredients constituting the compound, then to extrude the resulting mixture and to reduce the extrudate to pellets.
  • the thermoplastic polycondensate polymer(s) is/are obtained by emulsion polymerization, it can be convenient to mix the emulsion containing the impact modifier combination according to the invention with the emulsion of the thermoplastic polycondensate polymer and to treat the resulting emulsion in order to separate therefrom the solid product.
  • extrusion can be carried out in a suitable extruder, such as a Werner-Pfieiderer co-rotating twin screw extruder.
  • the extruder should be capable of screw speeds ranging from about 50 to about 12000rpm.
  • the temperature profile from the barrel number two to the die should range from about 170°C to about 270°C, and preferably from about 220°C to about 270°C, depending on the ingredients of the melt.
  • the extruder can be fed separately with the ingredients of the blend or together.
  • the selected temperature range should be from about 200°C to about
  • the extrudate can be pelletized or directed into a profile die. If pelletized, the pellets can then be molded by injection, compression, or blow molding techniques known to those skilled in the art. Preferably, one can introduce the polycarbonate and the polyester in split feed streams in two different ports of the extruder (main throat and down stream locations) with the use of both atmospheric vents and vacuum vents as preferred by those skilled in the art. High specific energy input is desirable to reduce the size of the impact modifier particles and to encourage uniform dispersion in the thermoplastic polymers. One can use a temperature profile of between 200 and 260°C, depending on the number and type of optional additives also included in the extruded blend.
  • thermoplastic polymer blends of the present invention are useful for transportation-related molded items (e.g., crash helmets and parts for vehicles such as bumpers and fenders); electrical equipment when flame retardants or reinforcing fillers are also added (e.g., plugs, connectors, boxes, and switches); and consumer appliance housings and containers (e.g., kitchen appliance housings and shells, and consumer electronics housings and cases). Further embodiments of the invention are described in the following Examples. Examples Test Methods Table 1 shows the test methods used in conjunction with the evaluation of the examples.
  • Blend Ingredients and Order of Addition Table 2 shows the ingredients of Example 1 and Comparative Example
  • Table 3 shows the order of delivery to a Werner-Pfieiderer ZSK-25 co- rotating twin-screw extruder operating at 250°C (T-melt) and 900 rpm speed.
  • the extrudate was pelletized and subsequently injection molded into the various required test forms on aNissei injection molding machine operating at 250°C (T-melt).
  • Example 1 outperforms Comparative Example A even though it had 22% less total impact modifier (7.4% vs. 9.6%).
  • Example 1 had a combination of tliree impact modifiers, whereas Comparative Example A did not include the Triblock Copolymer Impact Modifier.
  • Example 1 had better heat distortion resistance, better tensile strength, and better flexural modulus and comparable impact strength than Comparative Example A.
  • the invention is not limited to the above embodiments. The claims follow.

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

L'invention concerne un copolymère tribloc utilisé dans des mélanges thermoplastiques. Ce copolymère tribloc comprend un monomère aromatique, un monomère d'oléfine et un monomère d'alkyl(méth)acrylate. Une utilisation est destinée à l'obtention d'un mélange de polymères thermoplastiques comprenant (a) au moins un polymère de polycondensat thermoplastique, de préférence un polycarbonate et un polyester, et (b) une combinaison d'agents antichocs. La combinaison d'agents antichocs comprend (i) un additif de noyau/enveloppe possédant un noyau élastomère, (ii) un terpolymère linéaire d'éthylène, un alkyl(méth)acrylate et un monomère renfermant un hétérocycle contenant un atome d'oxygène comme hétéroatome, et (iii) le copolymère tribloc. Une seconde utilisation est celle du copolymère tribloc comme agent antichoc unique pour un mélange de polycarbonate et de polyester.
PCT/US2004/023195 2003-09-23 2004-07-19 Melanges antichocs de polycarbonate et de polyester Ceased WO2005035666A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/571,028 US20070054982A1 (en) 2003-09-23 2004-07-19 Impact-modified blends of polycarbonate and polyester

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US50522303P 2003-09-23 2003-09-23
US60/505,223 2003-09-23

Publications (2)

Publication Number Publication Date
WO2005035666A2 true WO2005035666A2 (fr) 2005-04-21
WO2005035666A3 WO2005035666A3 (fr) 2005-06-23

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WO (1) WO2005035666A2 (fr)

Cited By (2)

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WO2017046126A1 (fr) * 2015-09-17 2017-03-23 Covestro Deutschland Ag Composition de polycarbonate à impact modifié
CN109912955A (zh) * 2019-01-24 2019-06-21 广东壹豪新材料科技股份有限公司 一种pc/pet/pbt三元合金材料及其制备工艺

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KR20180090809A (ko) 2015-12-09 2018-08-13 코베스트로 엘엘씨 저 광택 및 고 충격 강도를 갖는 열가소성 조성물
CN110691834B (zh) 2017-05-22 2021-11-05 H.B.富乐公司 热熔融粘合剂组合物
KR20200141040A (ko) * 2018-04-09 2020-12-17 코베스트로 도이칠란트 아게 우수한 기계적 특성을 갖는 유리 섬유 강화된 열가소성 조성물
CN115558271B (zh) * 2022-09-19 2024-04-02 上海金山锦湖日丽塑料有限公司 一种耐高温型耐刮擦pc材料的制备方法

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CN108350258A (zh) * 2015-09-17 2018-07-31 科思创聚合物（中国）有限公司 冲击改性的聚碳酸酯组合物
CN109912955A (zh) * 2019-01-24 2019-06-21 广东壹豪新材料科技股份有限公司 一种pc/pet/pbt三元合金材料及其制备工艺

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